Inovance SV820N Series, Руководство пользователя, Страница: 111 / 181

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5 Troubleshooting
5
5.4 Troubleshooting of Warnings
■ E3.601: Home attaining warning
Cause:
When using the homing function, home is not found within the time set in 2005-24h.
Probable Cause Confirming Method Corrective Action
1. The home switch
fails.
There is only high-speed searching
and no low-speed searching during the
homing operation.
After high-speed searching of homing,
the drive keeps reverse low-speed
searching.
If a hardware DI is used, check whether the DI
function has been allocated to a DI in group 2003h
and then check the wiring of the DI. Manually
change the DI logic and observe whether the servo
drive receives DI level change in 200B-04h. If the
home signal is Z but it cannot be found at all times,
check the Z signal status.
2. The search time
is too short.
Check whether the time for homing set
in 2005-24h is too short.
Increase 2005-24h.
3. The speed for
searching for
the home switch
signal at high
speed is too
small.
Check the distance from the initial
position of homing to the home switch.
Then check whether 6099-01h (speed
during search for the home switch) is too
small, resulting in a delay in finding the
home switch.
Increase 6099-01h.
4. The setting of the
home switch is
improper.
Check whether the limit signals at two
sides are active simultaneously.
Check whether a limit signal is active
simultaneously with the home signal.
Set the position of the hardware switch properly.
■ E3.730: Encoder battery warning
Cause:
The battery voltage of the absolute encoder is lower than 3.0 V.
Probable Cause Confirming Method Corrective Action
1. The battery voltage of the absolute
encoder is lower than 3.0 V.
Measure the battery voltage.
Use a new battery of matching
voltage.
■ E3.909: Motor overload warning
Cause:
Accumulative heat of 60Z series 200 W and 400 W motors reaches the warning threshold.
Probable Cause Confirming Method Corrective Action
1. Wiring of the motor and
encoder is incorrect or in
poor contact.
Check the wiring between the servo
drive, servo motor and the encoder
according to the correct wiring diagram.
Connect the wirings according to the
correct wiring diagram.
Preferably use the cables
recommended by Inovance.
When self-made cables are used,
prepare and connect the cables
according to the hardware wiring
instructions.
2. The load is too heavy.
The motor keeps output
of effective torque higher
than the rated torque for a
continuous operation.
Confirm the overload characteristics of
the servo drive or motor.
Check whether the average load ratio
(2008-0Dh) is larger than 100% for a
long time.
Use a servo drive of larger capacity and
matching servo motor.
Reduce the load and increase the
acceleration/deceleration time.